MOOG part description

Engineered for optimal performance, the National® taper bearing cup delivers long-lasting durability.
National® Oil Seals & Bearings offer a full line of premium oil seals and bearings.
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National

Part Specifications

NAT BEARING TAPER CUP
Part Description Taper Bearing Cup
Cup Bore (Inch) 3.8750
Cup Bore (MM) 98.4250
Cup Length (Inch) 0.7018
Cup Length (MM) 17.8260
Cup Radius (Inch) 0.0310
Cup Radius (MM) 0.7870

Product Description

Greaseable Premium Universal Joint

Features & Benefits

  • BUILT TO LAST -- Rugged design specifically engineered for fleets, off-highway and commercial vehicles
  • STRONG AND DURABLE -- Bearing cups are cold-formed, case-hardened and precision ground for strength and durability
  • KEEPS DIRT OUT -- Abrasion-resistant nitrile seals provide ideal grease retention and protection from under-vehicle contaminants
  • GREASEABLE DESIGN -- Drilled and tapped grease fitting holes for easy servicing and cross trunnions with large grease reservoirs with radial grease channels for grease distribution
  • INHIBITS PREMATURE WEAR -- Cross trunnions ground to a 15-25 RMS finish for a smooth surface free of microscopic grooves that can cause premature wear
  • RELIABLE PERFORMANCE -- Internal anti-drainback valve integrated into thrust washer controls lubrication flow and prevents dry startup
  • RIGOROUS TESTING -- Comprehensive testing throughout design and development processes by MOOG engineers for quality you can count on

Product Attributes

Bearing Cap Axis 1 Diameter 1.3 IN
Bearing Cap Axis 1 Diameter 33 MM
Bearing Cap Axis 2 Diameter 1.3 IN
Bearing Cap Axis 2 Diameter 33 MM
Bearing Cap Type 4 Plain Round Bearings
Bearing Type A Round Plain
Bearing Type B Round Plain
Length Axis 1 3.662 IN
Length Axis 1 93 MM
Length Axis 2 3.662 IN
Length Axis 2 93 MM
Length Measurement A Outside of Bearing To Outside of Bearing
Length Measurement B Outside of Bearing To Outside of Bearing
LUBE FITTING LOCATION Angled lube fitting in center of cross
Greasable YES
OE Series Isuzu
U-Joint Identification 4 Plain Round Bearings
Part Description Universal Joint
Grade Type Premium

Additional Information

Country of Origin (Primary) JP
Canadian Harmonizing Tariff Code 8708991510
Harmonized Tariff Code (Schedule B) 8708996810
Harmonized Tariff Code (HTS) 8708996810
UPC 00080066607702

Part Interchanges

Fits Vehicles

  • Isuzu NPR-HD (2001-2004)
  • Isuzu NPR (1986-1997, 1999-2004)
  • Chevrolet W4500 Tiltmaster (2000-2004)
  • GMC W4500 Forward (2000-2004)
  • Chevrolet W5500HD Tiltmaster (2004)
  • GMC W3500 Forward (1995-1998, 2000-2004)
  • Chevrolet W3500 Tiltmaster (1995-1998, 2000-2004)

For over 100 years, Moog® has been an industry leader in mid- to high-end aftermarket parts for steering, suspension, and driveline systems worldwide. Utilized by daily commuters to entire fleets, Moog parts have become synonymous with reliable performance that’s just as good or even better than their OE counterparts. Moog also incorporates innovative features in their products not found in competing products, such as patented forged steel bodies and metal “gusher” bearings that greatly reduce friction across moving components. The brand also leads the way in after-sales support, with comprehensive technical assistance and training materials available for customers around the world.

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